Congrats on your first jam!
I liked some of the dissonant sounds used in prologue to hint at underlying danger. It was maybe a tad too long for my tastes but it was still fine. Sometimes the dissonance felt unintentional however. That made some songs not quite as enjoyable during certain sections. Tell me if I'm wrong though since intentional dissonance is cool.
I also like that I could clearly hear a motif throughout the songs.
Stage 1 I was reminded of A hat in time at some parts, specifically the song "No more mafia boss".
I was a big fan of the bass you used in Stage 2. It reminded me of like old PC games.
Correct me if I'm wrong, but it sounds like some of the songs repeat a full time or at least come close to an exact repeat before looping at the end. Because of that, the songs feel too long. In the future, I think a good idea would be to only start a loop to show how it loops before fading, and if the loop is actually changing something and is subtle but important, point it out in the text so people know to listen for those changes.
The melody in Stagefin was really good and was by far my favorite song in the OST. It changed frequently so I didn't get bored and had some crunchy chords. It had some parts that were dying for different notes though. Just from listening to it once, there were a bunch of sections that I would have composed differently, but that's the beauty of OST jams. This isn't my song so I get to hear a different interpretation. Stagefin had the most parts I thought could use fixing in notation and mixing, yet despite that, it was my favorite because of how unique it was and how I assume it pushed you to try something new.
Great entry. You have a lot of promise! Keep making music because I'm sure you will improve quickly!